Which of the following terms is used to describe the structural design based on factored loads?

The term that describes structural design based on factored loads is known as Strength Design. This method incorporates safety factors into the design process to ensure that structures can support loads beyond those anticipated during normal use. By using factored loads, engineers account for uncertainties in load estimations, materials, and potential variations in environmental conditions.

Strength Design is particularly associated with the design of concrete and steel structures, where the ultimate strength of materials is paired with factored loads to evaluate whether the structure will remain safe under expected conditions. This approach emphasizes the need to ensure that the structure can withstand loads that are typically higher than the service loads it will encounter throughout its lifecycle.

Using this method, engineers can confidently predict how structures will behave under both normal and extreme conditions, prioritizing safety and stability. In contrast, the other terms refer to different design methodologies and considerations that do not focus on factored loads in the same way.